Besides cheating, what reason would make you want to break up/divorce your partner?

Being unhappy. For whatever reason. It doesn't even matter. I feel like life is too short not to be at your happiest. You can be miserable by yourself. A spouse is supposed to make your life better. Every void should be filled. They should wear many hats and play many different roles and fill every one. If it isn't, then in my opinion i don't need them in my life.